Shaping or planing machine.



No. 656,795. Patented Aug. 28, |900. J. C. STEEN & C. L. WARNER.

SHAPING 0R PLANING MACHINE.

KNO Mode'.) (Application filed may 9, 1900..

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UNTTED STATES PATENT OFFICE;

JAMES C. STEEN AND CHARLES L. WARNER, OF CINCINNATI, OHIO, ASSIGN- ORS TO THE CINCINNATI SHAPER COMPANY, OF SAME PLACE.

SHAPING OR PLANING MACHINE.

SPECIFICATION forming part of Letters Patent No.V 656,795, dated August 28, 1900. Application iiled May 9, 1900. Serial No. 16,018. (N model.)

To all whom t may concern:

Be it known that we, JAMES C. STEEN and CHARLES L. WARNER, citizens of the United States, and residents of the city of Cincinnati,

county of Hamilton, and `State of' Ohio, have invented a certain new and useful Improvement in Shaping or Planing Machines, of which the following is a full, clear, and exact description, reference being had to the accomio panying drawings, which form a part of this specification.

Our invention relates to an improvement in shaping-machines, and is designed to furnish a means by which the downfeed of the tool may be regulated automatically.

The character of the improvement will appear more fully as we proceed with the description.

In the drawings, Figure lis a top plan view zo of an ordinary shaping-machine, partly shown in section, with our improvement attached. Fig. 2 is a side elevation of the same, also partly in section. Fig. 3 is a cross-section of the ram on the line 4 4 of Fig. l. Fig. 4 is z 5 a detail of the pawl which controls the downfeed of the tool.

Like letters of reference indicate identical parts in the various figures.

The ram A is mounted on the column C and 3o is operated in the usual manner by an oscil lating arm (not shown in the drawings) connected to said ram A by the usual adjustable block B or in any other convenient manner. The tool-carrying slide D is mounted at the forward end of the ram A in the usual manner and is operated by the feed-screw a.. A

bevel-gear b is splined to the feed-screw a and meshes with a bevel-gear on the short shaft c, which is mounted in the end of the ram. A second short shaft e is mounted in any convenient manner in the ram A at right angles to the shaft c and has keyed to it at one end the bevel-gear d', meshing with the bevel-gear d, keyed to the shaft c. Loosely mounted on the shaft e is a rocker f, carrying the spring-controlled reversible pawl n, which normally engages with a ratchet-wheel n', keyed to the shaft e. Loosely mounted on the bearing of the shaft e is a sleeve t', havn 5o ing a projecting iiange t, which covers the teeth of the ratchet-wheel n'. The projecting flange t" does not cover all of the teeth of the ratchet-wheel n', but leaves some of them exposed to the action of the pawl n, as seen in Fig. 4. Loosely mounted on the shaft e is a depending armj, which is adapted to engage with extending lugs f' f on the end of the rocker f, so that the rocking of the arm j will be communicated to the rocker f. A

bracket k, carrying a pin Z, is adj ustably 6o mounted on a bar m, which is secured to the column of the machine.

Referring now to the sleeve i, as we said before the flange 'i' of this sleeve il only eX- tends part way around the ratchet-wheel fn', 65 a portion of it being cutaway, so as to leave a number of teeth of the ratchet uncovered, this number being determined by the angle through which the rocker f is intended to operate. The pawl n is of such a shape that 7o when in engagement with the teeth of the ratchet it will turn the ratchet if moved in one direction, but will simply ride over said teeth if moved in the opposite direction. On the return stroke of the ram A the arm j is struck by the pin Z, and by striking one of the lugs f communicates this rocking motion to the pawl n, which causes the ratchet-wheel n' to be turned and through it the shafts e and c, thus causing the screw d to feed down. 8o If the whole throw of the pawl n causes a toorapid feed, the sleeve 1l may be adjusted so that fewer teeth are affected by t-he pawl n, thus decreasing the feed. The ends of the iiange fr" of the sleeve 'L' are chamfered od, as 8 5 seen in'Fig. 4, so as to permit the pawl n to ride freely from the teeth onto the teeth-covering iiange i. It is readily apparent that the sleeve i may be so turned that no teeth of the ratchet-wheel n will be affected by 9o the rocking of the pawl n, in which case the screw a will not be fed down at all.

Having thus described our invention, what we claim, and desire to secure by Letters Patent, is- 95 l. In a shaping or planing machine forautomatically operating the downfeed of the tool, a shaft, a rocker carried thereon, a pawl carried by said rocker, a ratchet-wheel keyed to said shaft, a sleeve partially covering said loo ratchet, mechanism whereby said rocker is oscillated at each reciprocation of the ram, and gearingintermediate said shaft and feedscreW whereby said feed-screw is operated, substantially as shown and for the purpose described.

2. In a shaping or planing machine for automatically operating the downfeed of the tool, a shaft with gearing intermediate said shaft and the feed-screw, a rocker carried by said shaft, a pawl carried by said rocker, a ratchet-Wheel keyed to said shaft, a loose sleeve partially covering said ratchet, an arm loosely mounted on said shaft and engaging lugs on said rocker, in combination with a pin carried by an adjustable slide on the coluinn of the machine, substantially as shown and described.

3. In a shapingorplaning inaehine,the feedscrew a, shaft e, and gearing intermediate the two, the rocker f, the pawl n, the ratchet- Wheel n', the loose sleeve i, the dependent arm j, in combination with the bracket k, carrying the pin Z, substantially as shown and for the purpose described.

JAMES O. STEEN. CHARLES L. VARNER. `Witnessesz PERRIN G. MARCH, SAML. W. SKINNER. 

